This research deals with the protagonist’S conflict in Asma Nadia’s novel entitled Surga Yang Tak Dirindukan. The protagonist’s conflict experienced by Arini is mainly due to polygamy. She has to let her husband marry another woman owing to his incurable disease of cancer. She has got the fourth stadium in her disease and she knows that she will soon pass away but she is thinking of the happiness of her husband and her daughter. And in this matter, she has to find another woman who could replace her. This research aims at revealing the kinds of the protagonist conflict and how she experiences them. The approach used in this research was qualitative approach, and the method was descriptive qualitative. The source of data was from the novel Surga yang Tak Dirindukan by Asma Nadia. The data in this research were the entire texts in the book. The techniques used to analyze the data are heuristic and hermeneutic. The research result shows that the protagonist conflict are categorized into two types: (1). internal conflict and (2). external conflict.
Keywords: polygamy, conflict, internal, external